"Secret" Diplomacy

I understand that Conquer Club wants to fight secret diplomacy, but the parties should be able to talk behind close doors when negotiating. As long as they announce the final truce/alliance/pact in the game forum, why is it any less valid?
Specifics:
This will improve the following aspects of the site:
Specifics:
- xxxxxxx
This will improve the following aspects of the site:
- xxxxxxx (you can obviously delete this for bug reports)
- xxxxxxx